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Chapter Assessment Lesson 12.3
Learning Key Terms and Concepts
Where is the physical "home" of the immune system?
A(n) _____ is a large molecule on the surface of a cell that helps the body distinguish between "self" and "nonself" cells.
Which of the following
cannot
act as an antigen-presenting cell?
A. macrophages
B. histamines
C. dendritic cells
D. B cells
Where do T lymphocytes travel to complete their maturation?
A programmed process of cellular self-destruction is called _____.
A. differentiation
B. clonal selection
C. apoptosis
D. metastasis
True or False?
Antibodies, also known as immunoglobulins, are Y-shaped.
A. True
B. False
How many classes of antibodies exist?
What do body cells display on their surface when they are infected by viruses or bacteria?
Thinking Critically
Explain how the immune system uses vaccine to build a defense through the primary and secondary immune response.
Explain how clonal selection, or cloning of lymphocytes, works and what becomes of the clones.
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